摘要
LNG接收站埋地管道因材质特殊,在施工过程中及投产运营后易产生管道内外部的腐蚀及破坏,随使用时间增长易产生管道腐蚀缺陷等问题。本文以LNG接收站埋地管道为背景,提出基于有限元分析的管道极限内压评估方法,并通过对工程实例管材进行管道腐蚀的有限元分析,综合分析比较各种内外腐蚀形态,提出管道腐蚀缺陷分析方法及主要影响因素。
Due to the special material of the buried pipeline in LNG terminal,it is easy to cause pipeline damage during construction,and pipeline corrosion and other defects are easy to occur with the increase of service time.Taking the pipeline of LNG terminal with corrosion defects as the background,this paper puts forward the pipeline limit internal pressure evaluation method based on finite element analysis.Through the numerical simulation of the real corroded pipeline,a large number of numerical calculation and analysis are carried out by using the finite element analysis software ANSYS,the comprehensive comparison is made,and the pipeline corrosion defect analysis method and main parameters are put forward.
作者
王亚群
王少炜
范明龙
WANG Ya-qun;WANG Shao-wei;FAN Ming-long(CNOOC Gas&Power Group Research&Development Center,Beijing 100028,China)
出处
《全面腐蚀控制》
2023年第1期13-18,共6页
Total Corrosion Control
关键词
LNG接收站
管道缺陷
管道腐蚀
有限元分析
LNG terminal
pipeline defects
pipeline corrosion
finite element analysis
